using Cognex.VisionPro;
using Cognex.VisionPro.ToolBlock;
using Prism.Commands;
using Prism.Events;
using Prism.Ioc;
using Prism.Mvvm;
using Prism.Regions;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Diagnostics.Eventing.Reader;
using System.IO;
using System.Linq;
using TeamAAS_VP;
using TeamAAS_VP.Core;
using TeamAAS_VP.Events;
using TeamAAS_VP.Interfaces;
using TeamAAS_VP.Models;
using TeamAAS_VP.Models.Calibration;
using TeamAAS_VP.Models.Lights;
using TeamAAS_VP.Models.Product;
using TeamAAS_VP.Resources.Languages;
using TeamAAS_VP.Services;

namespace TeamAAS_VP.ViewModels.Product
{
    public class ProcessBasicsViewModel : BindableBase, IConfirmNavigationRequest
    {
        IRegionManager _regionManager;
        IEventAggregator _eventAggregator;
        IContainerProvider _container;
        IDialogService _dialogService;
        IConfigService _configService;
        ICalibrationService _calibrationService;
        ISystemDatabaseService _systemDatabaseService;

        #region 属性

        private ProductModel _SelectProduct;

        /// <summary>
        /// 选中的产品
        /// </summary>
        public ProductModel SelectProduct
        {
            get { return _SelectProduct; }
            set { SetProperty(ref _SelectProduct, value); }
        }

        private ProcedureModel _SelectProcedure;

        /// <summary>
        /// 选中的流程
        /// </summary>
        public ProcedureModel SelectProcedure
        {
            get { return _SelectProcedure; }
            set { SetProperty(ref _SelectProcedure, value);
                if (value == null)
                {
                    SelectRobot = null;
                    SelectFeeder = null;
                    SelectCalibration = null;
                }
                else
                {
                    SelectRobot = _configService.GetAllRobots().FirstOrDefault(p => p.Id == value.RobotId);
                    SelectFeeder = _configService.GetAllFeeders().FirstOrDefault(p => p.Id == value.FeederId);
                    SelectCalibration = _calibrationService.GetAllCalibrations().FirstOrDefault(p => p.Id == value.CalibrationId);
                }
                
            }
        }

        private ObservableCollection<ProcedureModel> _ProcedureModels;

        /// <summary>
        /// 流程集合
        /// </summary>
        public ObservableCollection<ProcedureModel> ProcedureModels
        {
            get { return _ProcedureModels; }
            set { SetProperty(ref _ProcedureModels,value); }
        }

        private RobotInfo _SelectRobot;

        public RobotInfo SelectRobot
        {
            get {
                if (SelectProcedure != null)
                {
                    if (SelectProcedure.RobotId == Guid.Empty)
                    {
                        return null;
                    }
                    else
                    {
                        return _configService.GetAllRobots().FirstOrDefault(p => p.Id == SelectProcedure.RobotId);
                    }
                }
                else
                {
                    return null;
                }
            }
            set { SetProperty(ref _SelectRobot, value);
                if (value == null)
                {
                    if (SelectProcedure!=null)
                    {
                        SelectProcedure.RobotId = Guid.Empty;
                    }
                    return;
                }
                if (SelectProcedure != null)
                    SelectProcedure.RobotId = value.Id;
            }
        }

        private FeederInfo _SelectFeeder;

        public FeederInfo SelectFeeder
        {
            get
            {
                if (SelectProcedure != null)
                {
                    if (SelectProcedure.FeederId==Guid.Empty)
                    {
                        return null;
                    }
                    else
                    {
                        return _configService.GetAllFeeders().FirstOrDefault(p => p.Id == SelectProcedure.FeederId);
                    }
                }
                else
                {
                    return null;
                }
            }
            set
            {
                SetProperty(ref _SelectFeeder, value);
                if (value == null)
                {
                    if (SelectProcedure != null)
                    {
                        SelectProcedure.FeederId = Guid.Empty;
                    }
                    
                    return;
                }
                if (SelectProcedure != null)
                    SelectProcedure.FeederId = value.Id;
            }
        }

        private CalibrationInfo _SelectCalibration;

        public CalibrationInfo SelectCalibration
        {
            get
            {
                if (SelectProcedure != null)
                {
                    return _calibrationService.GetAllCalibrations().FirstOrDefault(p => p.Id == SelectProcedure.CalibrationId);
                }
                else
                {
                    return null;
                }
            }
            set
            {
                SetProperty(ref _SelectCalibration, value);
                if(SelectProcedure==null)
                    return;
                try
                {
                    if (value == null)
                    {
                        SelectProcedure.CalibrationId = Guid.Empty;
                    }
                    else
                    {
                        if (SelectProcedure != null)
                            SelectProcedure.CalibrationId = value.Id;
                    }
                }
                catch (Exception)
                {

                }
            }
        }

        private ObservableCollection<RobotInfo> _RobotList;
        public ObservableCollection<RobotInfo> RobotList
        {
            get { return _RobotList; }
            set { SetProperty(ref _RobotList, value); }
        }

        private ObservableCollection<FeederInfo> _FeederList;
        public ObservableCollection<FeederInfo> FeederList
        {
            get { return _FeederList; }
            set { SetProperty(ref _FeederList, value); }
        }

        private ObservableCollection<CalibrationInfo> _CalibrationList;
        public ObservableCollection<CalibrationInfo> CalibrationList
        {
            get { return _CalibrationList; }
            set { SetProperty(ref _CalibrationList, value); }
        }

        private ChannelConfig _SelectedLightChannel;
        public ChannelConfig SelectedLightChannel
        {
            get { return _SelectedLightChannel; }
            set { SetProperty(ref _SelectedLightChannel, value);
                // no additional action
            }
        }

        private bool CanNext
        {
            get
            {
                if (SelectProcedure!=null && !string.IsNullOrEmpty(SelectProcedure.TriggerCommand))
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
        }
        #endregion

        #region 命令
        private DelegateCommand _NextCommand;
        public DelegateCommand NextCommand =>
            _NextCommand ?? (_NextCommand = new DelegateCommand(ExecuteNextCommand).ObservesCanExecute(()=> CanNext).ObservesProperty(()=> SelectProcedure).ObservesProperty(() => SelectProcedure.TriggerCommand));

        private DelegateCommand _BackCommand;
        public DelegateCommand BackCommand =>
            _BackCommand ?? (_BackCommand = new DelegateCommand(ExecuteBackCommand));

        private DelegateCommand _PointPageCommand;
        public DelegateCommand PointPageCommand =>
            _PointPageCommand ?? (_PointPageCommand = new DelegateCommand(ExecutePointPageCommand));

        private DelegateCommand _LoadedCommand;
        public DelegateCommand LoadedCommand =>
            _LoadedCommand ?? (_LoadedCommand = new DelegateCommand(ExecuteLoadedCommand));

        private DelegateCommand _SelectLightChannelCommand;
        public DelegateCommand SelectLightChannelCommand =>
            _SelectLightChannelCommand ?? (_SelectLightChannelCommand = new DelegateCommand(ExecuteSelectLightChannelCommand));

        
        #endregion

        #region 事件

        #endregion

        public ProcessBasicsViewModel(IRegionManager regionManager, IEventAggregator ea, IContainerProvider container, IDialogService dialogService,
            IConfigService configService, ICalibrationService calibrationService, ISystemDatabaseService systemDatabaseService)
        {
            _regionManager = regionManager;
            _eventAggregator = ea;
            _container = container;
            _dialogService = dialogService;
            _configService = configService;
            _calibrationService = calibrationService;
            _systemDatabaseService = systemDatabaseService;
            //订阅权限登录事件
            _eventAggregator.GetEvent<UserLoginNotification>().Subscribe(LoginChange);
            
        }

        #region 方法

        /// <summary>
        /// 窗体加载事件
        /// </summary>
        void ExecuteLoadedCommand()
        {
            if (_systemDatabaseService.GetCurrentUser().userPart == Enums.UserPart.Operator)
            {
                IsAllowEdit = false;
            }
            else
            {
                IsAllowEdit = true;
            }
        }

        /// <summary>
        /// 下一步
        /// </summary>
        void ExecuteNextCommand()
        {
            try
            {
                if(SelectProcedure==null)
                    return;

                //if (SelectProduct.IsCreate && SelectProcedure.ToolBlock == null)
                //{
                //    SelectProcedure.ToolBlock = VisionProFileHelper.LoadObjectFromFileSafe(FilePath.SimpleProcedurePath) as CogToolBlock; 
                //}
                //else if (SelectProcedure.ToolBlock == null)
                //{
                //    string prcPath = FilePath.ProductsPath + "//" + SelectProduct.Name + "//" + SelectProcedure.CameraName + "//" + SelectProcedure.Name + ".vpp";
                //    if (File.Exists(prcPath))
                //    {
                //        SelectProcedure.ToolBlock = VisionProFileHelper.LoadObjectFromFileSafe(prcPath) as CogToolBlock;
                //    }
                //    else
                //    {
                //        SelectProcedure.ToolBlock = VisionProFileHelper.LoadObjectFromFileSafe(FilePath.SimpleProcedurePath) as CogToolBlock;
                //    }
                //}

                NavigationParameters param = new NavigationParameters();
                param.Add("SelectProduct", SelectProduct);
                param.Add("SelectedProcedure", SelectProcedure);
                _regionManager.RequestNavigate("ProductRegionContext", "CameraParams", param);
            }
            catch (Exception ex)
            {
                _eventAggregator.GetEvent<SnackbarMessageNotification>().Publish(new MessageParameter() { Msg = ex.Message, Duration = 1 });
                LogHelper.WriteLogError(Lang.产品配置加载流程时出错,ex);
            }
            
        }

        /// <summary>
        /// 上一步
        /// </summary>
        void ExecuteBackCommand()
        {
            NavigationParameters param = new NavigationParameters();
            param.Add("SelectProduct", SelectProduct);
            param.Add("SelectedProcedure", SelectProcedure);
            _regionManager.RequestNavigate("ProductRegionContext", "ProductProcessManage", param);
        }

        /// <summary>
        /// 跳转至点位界面
        /// </summary>
        void ExecutePointPageCommand()
        {
            NavigationParameters param = new NavigationParameters();
            param.Add("SelectProduct", SelectProduct);
            _regionManager.RequestNavigate("ProductRegionContext", "PlcPointParams", param);
        }

        /// <summary>
        /// 选择光源通道
        /// </summary>
        void ExecuteSelectLightChannelCommand()
        {
            if (SelectProcedure == null) return;
            if (SelectProcedure.LightChannels == null) SelectProcedure.LightChannels=new ObservableCollection<ChannelConfig>();

            DialogParameters keyValues = new DialogParameters();
            keyValues.Add("Channels", SelectProcedure.LightChannels.ToArray());
            _dialogService.ShowDialog("LightChannelList", keyValues, rst =>
            {
                //对话框关闭之后的回调函数，可以在这解析结果。
                ButtonResult result1 = rst.Result;

                if (result1 == ButtonResult.OK)
                {
                    ChannelConfig[] channels = rst.Parameters.GetValue<ChannelConfig[]>("Channels");
                    SelectProcedure.LightChannels = new ObservableCollection<ChannelConfig>(channels);
                    _eventAggregator.GetEvent<SnackbarMessageNotification>().Publish(new MessageParameter() { Msg = $"{Lang.添加完成}", Duration = 1 });
                }

            });
        }

        /// <summary>
        /// 流程选择
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void ComboBox_MouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            //ProcedureModels.Clear();
            //foreach (var item in SelectProduct.CameraProcedures)
            //{
            //    foreach (var item1 in item.ProcedureModels)
            //    {
            //        ProcedureModels.Add(item1);
            //    }
            //}
        }
        #endregion

        #region 继承
        /// <summary>
        /// 确认导航请求时调用。此方法允许您在导航之前执行一些操作。
        /// </summary>
        /// <param name="navigationContext"></param>
        /// <param name="continuationCallback"></param>
        public void ConfirmNavigationRequest(NavigationContext navigationContext, Action<bool> continuationCallback)
        {
            continuationCallback(true);
        }

        /// <summary>
        /// 接收导航请求时调用。传入导航参数，包含有关导航目标的信息。
        /// </summary>
        /// <param name="navigationContext"></param>
        /// <exception cref="NotImplementedException"></exception>
        public async void OnNavigatedTo(NavigationContext navigationContext)
        {

            SelectProduct = navigationContext.Parameters.GetValue<ProductModel>("SelectProduct");
            ProcedureModels = new ObservableCollection<ProcedureModel>();
            foreach (var item in SelectProduct.CameraProcedures)
            {
                foreach (var item1 in item.ProcedureModels)
                {
                    ProcedureModels.Add(item1);
                }
            }
            RobotList= new ObservableCollection<RobotInfo>(_configService.GetAllRobots());
            FeederList= new ObservableCollection<FeederInfo>(_configService.GetAllFeeders());
            CalibrationList= new ObservableCollection<CalibrationInfo>(_calibrationService.GetAllCalibrations());
            if (navigationContext.Parameters.ContainsKey("SelectedProcedure"))
            {
                SelectProcedure = navigationContext.Parameters.GetValue<ProcedureModel>("SelectedProcedure");
            }
        }

        /// <summary>
        /// 是否允许导航到此视图模型。
        /// </summary>
        /// <param name="navigationContext"></param>
        /// <returns></returns>
        public bool IsNavigationTarget(NavigationContext navigationContext)
        {
            return true;
        }

        /// <summary>
        /// 导航离开此视图模型时调用。您可以在此处执行清理操作或保存状态。
        /// </summary>
        /// <param name="navigationContext"></param>
        public void OnNavigatedFrom(NavigationContext navigationContext)
        {

        }
        #endregion

        private bool _IsAllowEdit = false;

        public bool IsAllowEdit
        {
            get { return _IsAllowEdit; }
            set { SetProperty(ref _IsAllowEdit, value); }
        }

        private void LoginChange(Models.User user)
        {
            if (user.userPart == Enums.UserPart.Operator)
            {
                IsAllowEdit = false;
            }
            else
            {
                IsAllowEdit = true;
            }
        }
    }
}